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  • Title: Long-term results of patients with pT2 rectal cancer treated with radiotherapy and transanal endoscopic microsurgical excision.
    Author: Lezoche E, Guerrieri M, Paganini AM, Feliciotti F.
    Journal: World J Surg; 2002 Sep; 26(9):1170-4. PubMed ID: 12209248.
    Abstract:
    Anterior resection and abdomino-perineal resection are the surgical techniques used most frequently in the treatment of rectal cancer. Local recurrence rates of 10% to 14% are described after these conventional procedures. Preoperative neoadjuvant radiotherapy reduces local failure. Because local excision techniques can be applied to treat early rectal cancer in selected patients, we evaluated the results of preoperative high-dose radiotherapy and transanal endoscopic microsurgical excision (TEM) in patients with T2 rectal cancer. All patients underwent preoperative irradiation with 5,040 cGy, divided over 5 weeks. Forty days after completion of radiotherapy, the patients underwent complete full-thickness local excision of the rectal lesion including adjacent perirectal fat by TEM. The patients were followed for up to 8 years. Thirty-five patients, with pT2 rectal cancer as determined by pathological examination of the surgical specimen were enrolled in the present study. The tumors were responsive to preoperative radiotherapy in 82.8% of cases. No intraoperative complications and no conversion to open surgery were observed. No major complications and no mortality occurred during the 60-day postoperative period. Minor postoperative complications were observed in 5 patients (14.3%). The median follow-up of the patients was 38 months (range 24 to 96 months). One local recurrence (2.85%) was noted. The probability of surviving at 96 months after completion of treatment was 83%. Local excision by TEM combined with preoperative high-dose radiotherapy can achieve results similar to those observed after conventional surgery in patients with pT2 rectal cancer.
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